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comparison libcommon/dumpdirfunc.c @ 9:c9ef9e91dd8e

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new libcommon, initial version
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 14 Mar 2021 06:55:38 +0000
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8:34bbb0585cab 9:c9ef9e91dd8e
1 /*
2 * This module implements the common function for dumping EF_DIR.
3 */
4
5 #include <sys/types.h>
6 #include <stdio.h>
7 #include "simresp.h"
8
9 static void
10 dump_aid(tlv, outf)
11 u_char *tlv;
12 FILE *outf;
13 {
14 unsigned reclen, n;
15
16 reclen = tlv[1];
17 fputs(" AID:", outf);
18 for (n = 0; n < reclen; n++)
19 fprintf(outf, " %02X", tlv[n+2]);
20 putc('\n', outf);
21 }
22
23 static void
24 dump_label(tlv, outf)
25 u_char *tlv;
26 FILE *outf;
27 {
28 int rc;
29 unsigned textlen;
30
31 fputs(" Label: ", outf);
32 rc = validate_alpha_field(tlv + 2, tlv[1], &textlen);
33 if (rc < 0) {
34 fputs("malformed\n", outf);
35 return;
36 }
37 print_alpha_field(tlv + 2, textlen, outf);
38 putc('\n', outf);
39 }
40
41 static void
42 dump_unknown_tlv(tlv, outf)
43 u_char *tlv;
44 FILE *outf;
45 {
46 unsigned reclen, n;
47
48 reclen = tlv[1] + 2;
49 fputs(" TLV:", outf);
50 for (n = 0; n < reclen; n++)
51 fprintf(outf, " %02X", tlv[n]);
52 putc('\n', outf);
53 }
54
55 void
56 dump_efdir_record(outf)
57 FILE *outf;
58 {
59 unsigned totlen, reclen;
60 u_char *dp, *endp;
61
62 if (sim_resp_data[0] != 0x61) {
63 fprintf(outf, " bad: first byte != 0x61\n");
64 return;
65 }
66 totlen = sim_resp_data[1];
67 if (totlen < 3 || totlen > 0x7F) {
68 fprintf(outf, " bad: global length byte 0x%02X is invalid\n",
69 totlen);
70 return;
71 }
72 if (totlen + 2 > sim_resp_data_len) {
73 fprintf(outf,
74 " bad: TLV global length exceeds EF record length\n");
75 return;
76 }
77 dp = sim_resp_data + 2;
78 endp = sim_resp_data + 2 + totlen;
79 while (dp < endp) {
80 if (endp - dp < 2) {
81 trunc_error: fprintf(outf, " bad: truncated TLV record\n");
82 return;
83 }
84 if ((dp[0] & 0x1F) == 0x1F) {
85 fprintf(outf, " bad: extended tag not supported\n");
86 return;
87 }
88 if (dp[1] & 0x80) {
89 fprintf(outf, " bad: extended length not supported\n");
90 return;
91 }
92 reclen = dp[1] + 2;
93 if (endp - dp < reclen)
94 goto trunc_error;
95 switch (dp[0]) {
96 case 0x4F:
97 dump_aid(dp, outf);
98 break;
99 case 0x50:
100 dump_label(dp, outf);
101 break;
102 default:
103 dump_unknown_tlv(dp, outf);
104 }
105 dp += reclen;
106 }
107 }